Joseph alexander toting



Patented Oct. 6, 1925.

UNITED STATES" .rosnrn annxannna Yotme, or BELLEVUE, PENNSYLVANIA.

on. courosrrrou. I

Ho Drawing.

gheny, and State of Pennsylvania, have in' vented certain new and usefulImprovements in Oil Compositions; and I do hereby dee clare thefollowing to be a fullfclear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the samei This invention relates to oil compositions; andit relates more particularly to an oil composition comprising a mineraloil base in which is dissolved camphor, said com position being ofspecial utility for lubrieating. leaf springs on motor vehicles, forloosening nuts, machine screws, or the like, that have become rusted orotherwise fixed in-place, and for other-analogous purposes.

' In general, the oil constituting the base of my novel oil compositionshould be mineral oil; and most desirably there should be no animal orvegetable oil in the composition. .Dissolved in the mineral oil base isa quantity of camphor, ordinary commercial gum camphor being suitableand being employedin proportion which may vary but which ordinarilysmall. The complete oil 0 composition should be penetrating 1n characterso thatit may readily enter extremely small cracks and crevices, but itshould nevertheless embody good lubricating properties. The camphorcontributes toward the penetrative characteristic; also it acts as arust-cutting agent .and rust deterrent, the

, term rust being here used broadly to designate any form ofcorrosion orthe like that causes contacting parts to become locked or ffrozentogether. The mineral oil base may vary considerably in its specificcharacter so long as it provides, in combination with the admixedcamphor, a highly penetrating oil composition, carrying lubricating 5values and possessing rust-cutting and protective properties ashereinabove set' forth. By wayof a concrete example embodying "theprinciples of the invention, reference may be made to one specific formof my 59 novel composition which has proved especially efiective in useand which constitutes the best'mode now known to me of practicing theinvention. In this particular instance, the mineral oil base consists ofa mixture of good quality lubricating oil, such as Application filed Kay6,

dinarily preferable.

1922. Serial No. 559,053.

a medium motor oil, and a high grade Pennsylvaniai crude petroleum; andwith this base is incorporated the desired amount of commercialgum'camphor. The ingredients mayadvantageously be compounded in theapproximate proportions of 4 parts of said lubricating oil, Il parts ofthe crude petroleum, and y -part camphor, ali parts being by weight.Although these proportions are especially desirable and are recommendedas best, they may be varied considerably while stillcrealizing thebenefits of the invention to a substantial extent. A convenient way ofincorporating the camphor with the oil is to dissolve it in a part ofthecrude oil with the aid of heat, and then to mix the solution with therest of the oil. Thisis merely typical, however, of procedures that maybe followed. The use of heat is not es-' sential although it expeditesthe operation of compounding the mixture. In general, the proportion. ofcamphor need not exceed 2 ounces per pint of the finished composition,and a substantially'smaller proportion is or:

' In the specific example above given, the lubricating oil employedtested as follows: Baum gravity 28.7; viscosity at 100 F., 300; flash,435 F.; fire, 485 F.; pour test,.20 F.; demulsibility, 172; conradsoncarbon, .25%;- acid number, .09 equal to .05% loleic. i I

The crude petroleum tested as follows Baum gravity, 47.0.; distillation,initial boiling point, 50 C.; 10% over at 113 C.; 20% over at143 G; 30%over at 170 (3.; 40% overfat 210 (3.; 43% over at 220 C. (yield ofgasoline); 50% over at247 0.; 60% overat 288 C.; 63% over at 300 C.(yield of kerosene). I

The use of a crude petroleum in the mixtureis-advantageous because itcarries not only a certain proportion of lubricating oil fractions butalso lighterfractions, such as the gasoline and kerosene fractions, thatcontribute toward thepenetrating-character of the final composition. l i

The complete finished composition ob- I tained in the above specificexample thinly fluid and highly penetrating, shows a typical mineral oilbloom, and'nnlells-stronglyfof camphor.

It is to be understood that theforegoing specific examples of oils andtheproportions in which they are used arenot intended as 9 restrictivebut only as illustrating how a typv phor in an oil consistin "ical andespecially desirable oil composition within the scope of my inventionmay be prepared. Repeated tests of novel oi com' positions embodying myinvention have established their effectiveness andivalue for thepurposes in View.

I What I claim is:

- 1., As a new article of manufacture, an oil composition comprising asolution of camof a mixture of a ubricating oil with cru e petroleum. 2.As a new article of manufacture, an oil composition comprising asolution ofabout part of camphor in about 15 parts of a -mixture ofcrudeipetroleum and refined lubricating oil. 3. As a new article ofmanufacture, an oil signature. I

usages composition comprising a solution of about M; part of camphor inabout 15 parts of a mixture comprisin about 11 parts of j Pennsylvaniaor ot er parafiine base crude petroleum and about 4 parts of a mediummotor lubricating oil. 4. As a new article of manufacture, an oilcomposition comprising a solution of camphor in mineraloil comprisingboth a mixture of refined lubricating oil and crude petroleum, theproportion of camphor not exceeding 2 ounces per pint of saidcomposition. In testimony whereof I hereunto JOSEPH ALEXANDER X YOUNG.

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